How to Convert Bytes to Kilobytes (B to KB)
Data conversions explain why a 1 TB drive shows less space on your computer and help compare mobile plans sold in gigabytes. This guide shows how to convert bytes into kilobytes by hand, with examples and a quick-reference table.
The conversion
To convert bytes to kilobytes, multiply the value by 0.001. To go the other way, divide by the same number (or multiply by 1,000). For a quick estimate, multiply by about 0.001.
Kilobytes = bytes × 0.001
Worked examples
- 3 B = 0.003 KB
- 12.5 B = 0.0125 KB
- 75 B = 0.075 KB
Bytes to Kilobytes table
| Bytes | Kilobytes |
|---|---|
| 1 B | 0.001 KB |
| 2 B | 0.002 KB |
| 5 B | 0.005 KB |
| 10 B | 0.01 KB |
| 20 B | 0.02 KB |
| 25 B | 0.025 KB |
| 50 B | 0.05 KB |
| 100 B | 0.1 KB |
| 250 B | 0.25 KB |
| 500 B | 0.5 KB |
| 1,000 B | 1 KB |
Common questions
Is B to KB exact?
The factors used here are the internationally defined values where they exist; results are rounded for display only.
How do I convert back?
Use the Kilobytes to Bytes converter.
Mistakes to avoid
Mixing similar-sounding units
US and imperial gallons, pints and tons are different sizes, and decimal kilobytes differ from binary kibibytes.
Dropping the units
A bare number without a unit is easy to misread later. Always write the unit with the result.
Multiplying when you should divide
Converting to a smaller unit gives a bigger number, and converting to a larger unit gives a smaller one. If your answer moves the wrong way, you have inverted the factor.
Background
Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.
Many conversion factors are exact by definition. The inch has been defined as exactly 2.54 centimetres since 1959, and the pound as exactly 0.45359237 kilograms, so conversions involving them can be as precise as you need.
Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.
For any value, use the Bytes to Kilobytes Converter or browse all data storage converters.
Run your own numbers: Bytes to Kilobytes Converter